ANALOX Sub Mk III F, Руководство пользователя

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Sub MkIIIF
User Manual
Int. Approved
Document ref: ASF3-800-08 November 2018 Page 59 of 79
Copyright © 2009 Analox Ltd. All Rights Reserved.
Commercial in Confidence
9 Data Communications Output
Two 9 way Female D-type connectors are fitted to the rear of the Operator Console. These are
intended for Diagnostic purposes, or for providing ‘real - time’ data from the system during use.
The Diagnostic Connector details are shown below.
Connector PL1 (COMM 0)
Pin Number Signal
1 NC
2 RS232 Transmit Output
3 RS232 Receive Input
4 DTR
5 RS232 Signal Ground
6 NC
7 RTS
8 NC
9 NC
Connector PL2 (COMM 1) – generally not used
9.1 Data Interface to External Systems
PL1 COMM0 on each Operator Console provides an RS232 data output connection if it is required
to capture and log the instrument status. No data connection should be made back to the Analox
system to avoid interference from unexpected data sources.
Data messages will typically be sent at least once every 5 seconds for each chamber, although this
can be set to be 1s, 5s, 15s, 30s, 60s, 120s, 300s.
All transmitted data is in ASCII printable characters, communicated at 9600 baud, 1 start bit, 8
data bits, no parity, 1 stop bit, no hardware handshaking, with a terminating carriage return
character (ASCII #13). A comma (#44) and a space character (#32) delimit each field within the
message.
Each message is preceded by a start character (>) and a date and time stamp. There is no
comma between the date and time, as this allows the date and time field to be imported to an
Excel spreadsheet as a combined date and time field.
Each message contains a checksum to validate the data within the message. A 4 digit ASCII
checksum (0000-FFFF hex) is intended as a straight summation of each of the characters in the
message (excluding the checksum itself).